Drinking horn



FIG. 1 is a right perspective view of a first embodiment of a drinking horn showing my new design;

FIG. 2 is a back elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a right side elevation view of a second embodiment of a drinking horn, showing my new design.

The broken lines shown in the drawings illustrate portions of the drinking horn that form no part of the claimed design. 

CLAIM The ornamental design for a drinking horn, as shown and described. 